Gas-lamp.



No. 880,797. PATENTED MAR; 8, 1908. A. H. HUMPHREY. GAS LAMP. APPLICATION FILED MAR. 16, 1907,

Inventor;

Witnesses PATENT OFFICE.

ALFRED ll. HUMPHREY, ()l" NEW YORK, N. Y.

GAS-LAMP.

Specification of Letters Patent.

Patented March 3, 1908.

Application filed Liarch 1.6. 1907. Serial No. 362.696.

T 0 all whom it may concern:

Be itknown that I, ALFRED H. HUM- PHREY, a citizen of the United States, residing at the city of New York, county of New York, State of New York, have invented certain new anduseful Improvmnents in Gas- Lamps, of which the following is a specification. i

This invention relates to improvements in 'gas lamps. 4

The main objects of this invention are, first, to provide in a gas lamp of the. inverted burner type, an improved burner. Second, to provide in a gas lamp of the inverted burner type, an improved construction and arrangement of the burner, whereby the parts may be readily assembled and adjusted. Third, to provide a gas lamp of the inverted burner type, in which the valves of the burner and burner tube are protected from the heat of the burner so that they do not become unduly heated, and the air inlet is protected from the products of,combus tron.

Furtherobjects, and objects relating to details of construction, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly ed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which,

Figure 1 is a detail side elevation of a structure embodying the features of my indefined and pointvention, only the chimney and burner, in

connection with the gas supply pipe, being illustrated. Fig. 2 is a vertical longitudinal section through the burner, taken on a line corresponding to line 22 of Fig. 1. Fig. 3 is a transverse section, taken on a line corresponding to line 3-3 of Fig. 2. Fig. 4 is a transverse section, taken on a line corresponding to line 4-4 of Fig. 2. Fig. 5 is a longitudinal section of the burner tip with a modified form of deflector and screen.

In'the drawing, the sectional views are taken looking in the direction of the little arrows at the ends of the section lines, and similar numerals of reference refer to similar parts throughout the several views.

Referring to the drawing,'the chimney 1 is preferably provided at its lower end with an 5' outwardly and downwardly projecting flange i l, the flange being perforated to receive the burner, which is arranred in an inverted position therethrough, t1e general arran ement being that shown in my application or Letters Patent filed June 22-, 1906, Serial Number 322,891. The chimney is preferably supported on the gas delivery'pipe 12, it being attached thereto by any suitable .means, as by the clip 13. On the gas delivery pipe] 2 is a nipple 14, having an inverted as delivery nozzle 15 thereon. The needle Va V6 16 controls the delivery of the gas from this nozzle.

The burner preferably consists of the burner tube 3 and the burner tip or delivery portion 5. The burner tube is arranged through the flange, as stated, and is preferably provided with an upwardly-tapered threaded portion 4, which is threaded into the flange of the chimney, thereby supporting the burner and effectively closing the opening in the flange through which it is inserted. The up per end of the burner tube is supported below the gas delivery nozzle, so that the gas is de livered centrallythere to. Threaded upon the nipple is a sleeve 10 having air inlet'opcnings 11 therein, which are preferably of sufficient sizeto allow the manipulation of the gas'delivery nozzle 15, or its removal or insertion without moving the sleeve. The sleeve is adapted to receive the upper end of the burner tube, guiding and supporting the same in proper relation to the gas delivery nozzle. The sleeve is also adapted to serve as a valve for controlling the air inlet.

The burner tube is provided with a flangelike enlargement 17 at its lower end and the burner tip or delivery portion 5 is provided with a corresponding enlargement at its upper end. These parts are preferably formed of suitable non heat-conducting materials, so that the heat from the burner is not carried or conducted to the valves or to the burner tube.

coupling sleeve 6, which is arranged on the expanded or flanged lower end 17 ofthe burner tube, the same being prevented from formingand connecting the parts, the burner may be assembled in the lamp b threading the tube 3 through the chimney flange which brings it in proper position below the gas delivery nozzle, as described, the sleeve l0 turning thereon by the lugs 18. By thusv properly guiding and supporting the upper The burner tip 5 is detachw ably connected to the tube by a threaded taching or removing the burner.

end thereof. The burner tip may be easilyremoved, as desired. I 1

I preferably provide the burner tip with a plurality of longitudinal projecting ribs 9,

.which assist in radiating the heat and also serve as effective grips for convenience in at- This arrangement prevents the undue heating of the burner tube above the chimney flange, as the chimney serves to draw the heat from the burner, and the burner tip and tube, being, formed of non-heat-conducting material, do not by conductivity carry the heat to the parts above the flange, so that they are kept comparatively cool. By forming the'burner tip and burner tube independently, they can be'economically manufactured of the nonlloiparconducting material and readily assem e A Another advantage is that, should the burner tip be destroyed, a new ti can be adjusted to theburner tube. The urner tube is preferably provided with a mixing chamber 21 for the air and gas, and with an expansion chamber 22, the upper end of the mixing tube serving as a mixing chamber and the lower end as the expans1on chamber. The mixing chamber21 1s tapered or contracted downwardly, while the ex ansionchamber is enlarged and expanded ownwardly from the lower end of the mixing tube. The burner tip chamber 23 is contracted downwardly, as clearly-appears from Fig. 2 of the drawing. The walls of the mixing chamber .are preferably formed with a parabolic curvature,-as appears from an inspection'of Fig. 2.

Between the gas delivery nozzle 15. and the mouth of the burner tip, the delivery nozzle and the mouth of the burner tip being preferably in alinement, as I have illustrated in the accorrfilpanying drawing, I arrange a deflector or ba e 7 This deflector 7 ,'which is preferably conical in form, is referably sup ported on the screen 7 whic 'is also preferably conical in form, .as is illustrated in Fig.

.2. The screen is preferably su ported on an annular shoulder 20 providedt erefor at the upper end of the burner tip, the deflector projecting into the lower end of the mixing chamber of the burner. The deflector when .thus located receives the direct impact from the nozzle 15. This practically eliminates the blowing or roaring which is likely to be present, particularly where the gas is delivered under high pressure, and also prevents the destruction of the mantles as otherwise sometimes occurs where the gas is delivered under'high pressure. The burning mixture "is also more effectively delivered at the month of the burner tip for properly incandescing'the whole of the mantle. A further advantage of this arrange'mentis to prevent back-lighting 'or back-firing, as it is called;

In the modified construction shown in Fig.

' screen.

5 the deflector is shown mounted upon a flat This form has the advantage of a slight economy of manufacture over that shown in Fig.

The mixing chamber, expansion chamber,

vand the contracted chamber of the burner 1 the support not being. here illustrated, as

they form no part of this invention,

By supporting the burner tube b threading into the chimney flan e, as 'lustrated and described, I am enab' ed to effectively support the same, although it may be made of non-heat-conduc'tin'g material such as porcelain, magnesia, and the like, thus permitting the forming of large, strong threads and avoiding the necessity of forming fine threads thereon, which would be necessary if the burner tube was to be supported from the nipple 14 or by threading into or uponthe sleeve 10. I

The mani z I have illustrated and described my im-- proved gas lamp in detail in the form preerred by me on a ccount of its structural simplicity and economy and theconvenience in adjusting the parts when ,in. use. I am, how'- ever, aware that it is capable of considerable variation in structural details without departing from my invention, and I desire to be understood as claiming the same specifically, as illustrated, as well as broadly.

' Having thus described my invention, what I claimas new and desire to secure by Letters Patent is:

1. In a gas lamp, the'combination with a gas delivery pipe, of a chimney connected thereto, said chimney having an outwardly: pro'ec-ting flange at its lower end; a nip le on sai gas delivery pipe; a downwardlyirected delivery nozzle threaded upon the lower end of said ni )ple; a valve for controlling said delive nozzle; a sleeve adjustably-arranged on sai nipple having openings in the sides thereoffor the admission of air and for'the manipulation ofsaid nozzle, said openings being of sufficient size to admit of theinsertion or removal of'said nozzle therethrough; an inverted burner tube having a flange-like en; largement atits lower end, threaded through said chimney flange, arranged with its upper end projecting into said sleeve; an inverted burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; acouplin sleeve arranged onthe enlar ed lower em of said burner tube, into w ichysaid burner ti is threaded; and lugs on said burner tu e'adapted to eng a e said coupling whereby its rotation on sai burner tube is prevented.

2. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected, projecting flan thereto, said chimney having an outwardlyprojecting flan e at its lower end; a. downwardly-directe delivery nozzle; a valve for controlling said delivery nozzle; a sleeve having openings in the sides thereof for the admission of air, arranged about said nozzle; an inverted burner tube having a flange-like enlargement at its lower end, threaded through said chimney flange, arranged with its upper end projecting into said sleeve; an inverted burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of thesaid burner tube; a couplin sleeve arranged on the enlarged lower enc of said burner tube, into which said burner tip is threadedfand lugs on said burner tube adapted to engage said coupling whereby its rotation on said burner tube is prevented.

In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, said chimney having an outwardlypro'ecting flange at its lower end; a nipple on sai gas delivery pipe; a downwardly-directed delivery nozzle threaded upon the lower end of said nipple; a valve for controlling.

said delivery nozzle; a sleeve adjustablyarranged on said nipple having openings in the sides therof for the admission of air and for the manipulation of said nozzle, said openings being of suflicient size to admit of the insertion or-removal of said nozzle therethrough; an inverted burner tube having a flange-like enlargement at its lower end, threaded through said chimney flange, arranged with its upper end projecting into said sleeve; an inverted burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; and a coupling sleeve arranged on the enlarged lower end of said burner tube into which said burner tip is threaded. 4. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, said chnnney having an outwardlyprojecting flange at its lower end; a downwardly-directed delivery nozzle; a valve for controlling said delivery nozzle; a sleeve having openings in the sides thereof for the admission of air arranged about said nozzle; an inverted burner tube having a flange-like enlargen'ient at its lower end, threaded through said chimney flange, arranged with its upper end projecting into said sleeve; an inverted burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; and a coupling sleeve arranged on the enlarged lower end .of said burner tube, into which said burner tip is threaded.

5. In a gas lamp, the coin-bination with a gas delivery pipe, of a chimney connected thereto, said chimney having an outwardlye at its lower end; a downwardly-directed delivery nozzle; a valve for controlling'said delivery nozzle; an. inverted burner tube having a flange-like enlargement at its lower end, threaded through said chimney flange, arranged with its upper end arranged below said delivery nozzle; an inverted burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; a

coupling sleeve arranged on the enlarged lower end of said burner tube into which said burner tip is threaded; and lugs on said burner tube adapted to engage'said cou ling whereby its rotation on said burner ,tu e is prevented.

6. In a gas lamp, the combination with a "as deliver i e of a chimne connected as thereto, said chimney having an outwardlyprojecting flan e at its'lower end; a downward ly-directed delivery nozzle; a valve for: controlling said delivery nozzle; an inverted burner tube having a flange-like enlargement at its lower end, threaded through said chimney flange, arranged with its upper end arranged below said delivery nozzle; an invert ed burner tip having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; and a coupling sleeve arranged onthe enlarged lower end of said burner tube, into which said burner tip is threaded.

7. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, said chimney having an outwardlyprojecting flange at its lower end; a downwardly-directed delivery nozzle; a valve for controlling said delivery nozzle; a sleeve having openings in the sides thereof for the admission of air arranged about said nozzle; an inverted burner tube formed of non-heatconducting material having a flange-like enlargement at its lower end, threaded through said chimney'flange, arranged with .a coupling sleeve arranged on the enlarged lower end of said burner tube into which said burner tip is threaded; and lugs on said burner tube adapted to engage said cou ling whereby its rotation on said burner tu e is prevented. I

8. In a gas lamp, the combination with a gas delivery pipe, ofa'chimney connected thereto, said chimney having an outwardlyprojecting flange at its lower end; a downwardly-directed delivery nozzle; a valve for controlling said delivery nozzle; a sleeve having openings in the sides thereof for the admission o'tair arranged about said nozzle; an'invcrted burner tube formed of non-heatconducting material having a flange-lil e enlargement at. its lowerend, threaded. through said. chimney flange, arranged with.

larged lower end of said burner tube, into' which said burner tip is threaded.

9. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, said chlmney having an outwardly projecting flange at its lower end; a downwardly-directed delivery nozzle; a valve for controllin said delivery nozzle an inverted burner tube formed oi-non-heat-eonducting material having a flange-like enlargement at. its lower end'threaded through said chimney flange, arranged with its upper end below said delivery nozzle; an inverted burner ti formed of non-heatconducting materia having a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burner tube; a coupling sleeve arranged on the enlarged lower end of said burner tuba-into which said burner-tip is threaded; and lugs on said burner tube arranged to engage said coupling whereby its rotation on said burner is prevented.

" 10. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected 4 thereto, said chimney having an outwardlyprojecting flange at its lower end ;'a downwardly-directed delivery nozzle; a valve for controlling said delivery nozzle; aninverted burner tube formed of non-heat-conducting' material having a flange-like enlargement at its lower end, threaded through said chimlow said delivery-nozzle; an inverted burner tip formed of non-heat-conducting material having a threaded enlargement at its upper 'ehd'corresponding in diameter to the lower end of the said burner "tube; and a coupling sleeve arranged on the enlarged lower end of said burner tube, into which said burner tip isthreaded.

1.1. In a gas'lamp; the combination with a gas delivery pipe of' a chimney connected I project ng flan e at its lower end; a down wardly-d recte delivery nozzle; a valve for controllin said delivery nozzle; an inverted 5 5 burner tube-formed of'non-heat-conducting material,having anupwardly-ta' ered threaded ortion'and aflange-like en 'argement at its ower end,,threaded through said' chimney flange,- arran'ged' with its upper end be= low said-nozzle; an inverted burner tip hav .ing a threaded enlargement at its upper end corresponding in diameter to the lower end of the said burnertube; a coupling sleeve arrangedon the enlarged end. of said burner tube, into which said burner tip is threaded;

ney flange, arranged with its upper end be-- inverted burner'tu conducting material having an--upwardly'' tapered portion threaded'through said chime-11 5 thereto v said chimney having an outwardlyand lugs on said burner tube adapted to engage said, coupling whereby its rotation on said burner is prevented.

12. In a gas lamp, the combination with a gas delivery pipe, of'a chimney connected thereto, said chimney having an outwardlyprojectlng flange at its lowerend; a downwardly-directed delivery nozzle; a valve for controllin said delivery nozzle; an inverted burner tu e formed of nbn-heat-cdnducting material,having anupwardly-ta ered threadcd' )ortion and a flange-like en argement, at its lower end, threaded through said chimney flange, arranged with its upper end below said nozzle; an inverted burner tip having a threaded enlargement at its upper end correspondingin diameter'to the lower end of the ,said burner tube; and a coupling sleeve arranged on the enlarged end of said burner tube, into which said burner tip is threaded. 13. In a gas lamp, the comb nation with-a gas delivery-pipe, of achinmey connected thereto, said chimney having an outwardlyprojecting flange at; ts lower end; a nipple on said as delivery pipe; a downwardly-directed elivery nozzle threaded upon the lower end of said nipple; a valve for controlling said delivery nozzle; a sleeve adjustablyarranged on said nip le having openings in the sides thereof for t e admission of air and for the manipulation of said nozzle, said openings being ofsuffieient size to admitoi, the insertion'or removal'of-said nozzle therethrough; an inverted burner tube formed of 3:, non-heat-conducting material having an upwardly-tapered threaded portion, threaded through said chimneyflange, arranged with its upperend projectlng into said sleeve; and an inverted burner tip onsaid tube.

14. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, saidchimney having an outwardly'-' projecting flange at its lower end; a downs. wardly-directed delivery nozzle; a valve for controlling said deliver nozzle a sleeve have ing openings in the si e's thereof for the' a'd missionof air arranged about said. nozzle; an

6 formed ofnon-heat ney flange, arranged :With'its upper endprof .jecting into saidysleeve; and an inverted burner tip on said tuber I 15. In a gas lamp, the combination witha I gas deliverypipe, ofachimney connected12'0 thereto, said chimney having an outwardly-' projecting flange at its lower end; a. nipple on said gasdelivery pipe; a downwardly-directed delivery nozzle threaded upon the, lower end of said nipple; a valvefor controlling said delivery nozzle; a sleeve adjustably' arranged on said nipple having openings'in its sides thereoffor the admission of air and for the'wmanipulation of said nozzle, said openings being of suflicient size to admit of the insertion or removal of said nozzle therethrough; an inverted burner tube formed of non-heat-conducting material arranged with its upper end projecting into said sleeve; and an inverted burner tip on 'sald tube.

. mission of air arranged about said nozzle; an

'material arranged with burner tube inverted burner tube arranged through and detachably secured to said flange with its upper end rojecting into said sleeve; and an inverted urner tip on said tube.

17. In a gas lamp, the combination with a gas delivery pipe, of a chimney connected thereto, said chimney having an outwardlyprojecting flange atits lower end a'valve for controlling said delivery nozzle; an inverted burner tube formed of non-heat-conducting its upper end arranged below said delivery nozzle; and an inverted burner tip on said tube.

18. In an inverted, incandescent gas-burner, the combination with the gas delivery nozzle, of a burner comprising an inverted burner tube arranged-with its upper end below said nozzle, said burner tube having a downwardly-tapered or contracted mixing chamber at its upper end delivering into a downwardly-expanding expansion chamber; an inverted burner tip detachably connected to said burner tube, the chamber of said tip being tapered or contracted downwardly, said burner tip having an internal'annular shoulder at the upper end thereof; and a screen seated on said shoulder, said mixing chamber, expansion chamber and burner tip chamber eing of substantially the same. length, as specified.

1 9. In an inverted, incandescent gas burner, the combination with the gas delivery nozzle, of a burner, comprising an inverted low said nozzle, said burner tube having a downwardly-tapered or contracted mixing chamber at its upper end delivering into a downwardly-expanding expansion chamber; an inverted burner tip detachably connected to said burner tube, the chamber of said burner tip being tapered or contracted downwardly, said burner tip having an internal shoulder at the upper end thereof; and a screen seated on said shoulder, said mixing chamber, expansion chamber,'and burner tip chamber being of substantially the same length, as specified.

20. In an inverted, incandescent gas burner, the combination with the gas delivery nozzle, of a burner, comprising an inverted burner tube arranged with its upper end below said nozzle, said burner tube having a.

arranged with its upper end bedownwardly-tapered or contracted mixing chamber at its upper end delivering into a downwardlyexpanding,expansion chamber; an inverted burner tip detachably connected to said burner tube, the chamber ofsaid burner tip being taperedior contracted downwardly, said mixing chamber, expansion chamber, and burner tip chamber being of substantially the same length, as specified.

21. In an inverted, incandescent gas burner, the combination with the gas delivery nozzle, of a burner, comprising 'aninverted burner tube arranged with its upper end below said nozzle, said burner tube having a downwardly-tapered 'or contracted mixing downwardly-expanding e'x ansion chamber, the walls of sa d mixing 0 amber having a parabolic curvature; an inverted burner t1p detachably connected to said burner tube, the chamber of said burnertip being tapered chamber, expansion chamber and burner tip chamber being of substantially the same length, as specified. a

conical screen's'eated on said shoulder and projecting upwardly into said. expansion chamber; and a,conical' deflector carried by said screen, said deflector being interposed wardly from said screen of the mixing chamber, as specified.

23. In an inverted incandescent gas burner,

zle, .of a burner comprising an inverted burner tube arranged w1th its upper end be low said nozzle, said burner tube having a downwardly tapered or contracted mixing chamber at its upper end delivering into a downwardly expanding expansion chamber; an inverted burner tip, the chamber of said burner tip being tapered or contracted downwardly; a conical burner screen arranged at the upper end of said burner tip and projecting upwardly into said expansion chamber; and a conical deflector carried by said screen, said deflector being interposed between the said delivery nozzle and the mouth of the burner tip, and from said screen into the ower end of the mixing chamber, as specified.

22. Inan invertedincandescent gas burner, 4

' annular shoulder at the upper end thereof; a

between the said delivery nozzle and the' mouth of the burner tip, and projecting upinto the lower end the combination with a gas delivery noz- 24. an inverted, incandescent lamp, the

chamber at its upper end delivering into a or contracted downwardly, said mixing' rojecting upwardly combination'with a burner tube having a .fiange-like enlargement at its lower end, of a burner tip having a flange-like threaded enlargement atits upper end corresponding in diameter to the enlargement of said burner tube and adapted to fit against the end thereof; a cup-like metal coupling sleeve loosely arranged on the enlargement of said burner tube, said sleeve being threaded at its lower end to receive the. threaded enlargement of said burner tip, and a lug'on said burner tube adapted to engage said coupling sleeve whereby its rotation on said tube is prevented.

25. In an inverted, incandescent lamp, the

; combination with a burner tube having a flange-like enlargement at its lower end, of

a burner tip having a flange-like threaded enlargement at its u per end corres onding 1n dlameter to the en argement of sai' burner tube and adapted to fit against the end thereof; and a cup-like metal coupling sleeve loosely arranged on the enlargement of said burner tube, said sleeve being threaded at its lower end to receive the threaded enlargement of said burner tip.

In witnesswhereof I have hereunto set my hand and seal m the presence of two wit-' 

